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75 lines
2.7 KiB
Makefile
75 lines
2.7 KiB
Makefile
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# Copyright (C) 1993, 1994 Free Software Foundation, Inc.
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# This file is part of the GNU C Library.
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# The GNU C Library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Library General Public License
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# as published by the Free Software Foundation; either version 2 of
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# the License, or (at your option) any later version.
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# The GNU C Library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Library General Public License for more details.
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# You should have received a copy of the GNU Library General Public
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# License along with the GNU C Library; see the file COPYING.LIB. If
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# not, write to the Free Software Foundation, Inc., 675 Mass Ave,
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# Cambridge, MA 02139, USA.
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ifndef mach-srcdir-computed
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mach-srcdir-computed := yes
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# If we were configured with `--with-mach=DIR', then config.make sets
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# mach-srcdir to DIR. Otherwise guess we are in a big source tree.
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ifndef mach-srcdir
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mach-srcdir = ../mach
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endif
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# mach-srcdir is now set to the logical directory name. This name might be
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# relative to $(objdir), might be relative to the source directory $(..), or
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# might be absolute. We choose among these possibilities by looking for a
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# canonical file in each of those places (in that order).
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f := mach/mach.defs # Random file that identifies the Mach source dir.
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f := $(strip $f)
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mach-srcdir := $(firstword $(patsubst %/$f,%,$(wildcard $(addsuffix /$f,\
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$(objpfx)$(mach-srcdir) $(..)$(mach-srcdir)))) $(mach-srcdir))
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endif # ! mach-srcdir-computed
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ifdef in-Makerules
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# Look for header files in mach/ under the top-level library source directory.
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includes += -I$(..)mach
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# When compiling, use the Mach header files directly from the kernel sources.
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includes += -I$(mach-srcdir)
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# Find Mach header files in the kernel source.
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vpath mach/%.h $(mach-srcdir)
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vpath device/%.h $(mach-srcdir)
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ifneq (mach,$(subdir))
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# Subdirectories other than mach/ might use the generated Mach headers.
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# So make sure we get a chance to run in mach/ to make them before all else.
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ifdef objpfx
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mach-objpfx = $(objpfx)
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else
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mach-objpfx = $(..)mach/
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endif
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# These are all the generated files that <mach.h> includes.
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mach-before-compile := $(mach-objpfx)mach-shortcuts.h \
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$(patsubst %,$(mach-objpfx)mach/mach_%.h,\
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interface port host)
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# This patsubst generates patterns like `m%h-shortcuts.h', which are damn
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# likely to match just the corresponding particular file we want.
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$(patsubst mach%,m\%h%,$(mach-before-compile)): # Run only if doesn't exist.
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$(MAKE) -C $(..)mach generated no_deps=t
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before-compile += $(mach-before-compile)
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endif
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endif # in-Makerules
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